Its not linear.
Which one has the most experience is though.
I'm just going to stop beating around the bush.
Experience is a rubbish argument and doesn't matter at all. That same as momentum doesn't matter.
The reason you can't win anything with a bunch of 22 year olds is some of the 22 year olds you think are good actually won't be not because they don't have any experience.
A team of the best u23s in the world would give City and the RS a run for their money but it is impossible to assemble that team. The problem is getting it right with who is and isn't actually good at that age, not experience.
Put it in the bin right next to momentum.